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sh: Add die chain notifiers.

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Add the atomic die chains in, kprobes needs these.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
This commit is contained in:
Paul Mundt
2007-05-01 16:33:10 +09:00
committed by Paul Mundt
parent 3dde7a3c74
commit 3a2e117e22
5 changed files with 104 additions and 7 deletions
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35
include/asm-sh/kdebug.h Normal file
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#ifndef __ASM_SH_KDEBUG_H
#define __ASM_SH_KDEBUG_H
#include <linux/notifier.h>
struct pt_regs;
struct die_args {
struct pt_regs *regs;
int trapnr;
};
int register_die_notifier(struct notifier_block *nb);
int unregister_die_notifier(struct notifier_block *nb);
int register_page_fault_notifier(struct notifier_block *nb);
int unregister_page_fault_notifier(struct notifier_block *nb);
extern struct atomic_notifier_head shdie_chain;
/* Grossly misnamed. */
enum die_val {
DIE_TRAP,
DIE_PAGE_FAULT,
};
static inline int notify_die(enum die_val val, struct pt_regs *regs,
int trap, int sig)
{
struct die_args args = {
.regs = regs,
.trapnr = trap,
};
return atomic_notifier_call_chain(&shdie_chain, val, &args);
}
#endif /* __ASM_SH_KDEBUG_H */